TBH I’ve been shooting for an 800 and have been studying for months with practice tests etc. (just some background). That being said I thought it was very similar to the practice tests that I have taken and was relatively easy (probably looking at a score 760 - 800). I 100% believe that there is an element of luck when it comes to the SAT II US history tests as to what material (authors, painters, legislation, etc.) will be covered.
Anyway, I’d love to hear what others thought.